Show:
Potential vs Kinetic
Forms of Energy
Renewable resources
Non-renewable resources
Scientific Method
100
Kinetic energy is the energy of ___________.
Kinetic energy is the energy of motion.
100
What type of energy is released by a light bulb?
Light and heat
100
Name three renewable resources
Solar power, hydroelectric power, geothermal power, biomass, wind power
100
What are the 3 types of fossil fuels?
Oil, coal, natural gas
100
Which of the following is an observation: a) The dog's fur grows quickly b) The dog's fur is brown
The dog's fur is brown is an observation
200
Which has more potential energy a) a ball being thrown by a softball player b) a ball sitting on a shelf
A ball sitting on a shelf has more potential energy
200
What type of energy is in a battery?
Chemical energy
200
Why are some resources considered renewable?
Resources are considered renewable because these sources can be replaced (or replenished) in a short period of time
200
Why are fossil fuels non-renewable resources?
Fossil fuels are non-renewable resources because they cannot be replaced at the rate we are using them and they take millions of years to form
200
Name the 5 steps of the scientific method
1) Pick a topic 2) Research 3) Hypothesis 4) Experiment / (analysis of results) 5) Conclusion
300
Which of the two items traveling at the same speed has more kinetic energy: a) a bowling ball rolling down an alley b) a tennis ball rolling down an alley
The bowling all has more kinetic energy because it has more mass
300
As a battery is used, what type of energy is transformed into what other type?
As a battery is used, chemical energy is transformed into electrical energy
300
Solar power generates energy from the _(a)_______. Wind power generates energy from the __(b)____. Hydroelectric power generates energy from the ___(c)____. a) b) c)
a) The sun b) The wind c) Moving water
300
How are fossil fuels created?
Millions of years ago organisms died and over time they turned into oil, coal, or natural gas
300
Chelsea wants to know what type of popcorn (pop secret, smart balance, orville redenbacher) pops the most amount of kernals in the microwave. What is a possible hypothesis Chelsea can test?
Hypothesis: Pop secret will pop the most popcorn.
400
Which has more potential energy? a) A person sitting in chair at the top of a 10 story building b) A person sitting in a chair in the lobby (1st floor) of that building
A person sitting in chair at the top of a 10 story building
400
The four steps in a nuclear power plant to make energy are as follows: 1. Fission splits uranium atoms 2. The heat from that reaction boils water, creating steam 3. Steam turns turbine 4. Turbine turns generator, generating electricity Explain the energy transformation in each of the four steps
1. Nuclear energy into heat energy 2. Heat energy 3. Heat energy into kinetic or mechanical energy 4. Mechanical energy into electrical energy
400
What are the four steps required to generate energy from wind power?
a) The wind turns the turbine b) The turbine turns the generator, generating electricity
400
What are the four steps required to generate electrical energy from fossil fuels?
1) Burn fossil fuel 2) That heat boils water to create steam 3) That steam turns the turbine 4) The turbine then turns the generator and creates electricity
400
Chelsea wants to know what type of popcorn (pop secret, smart balance, orville redenbacher) pops the most amount of kernals in the microwave. What is the independent variable? What is the dependent variable?
Independent variable: brand of popcorn Dependent variable: how much popcorn pops (amount of popcorn)
500
As a ball falls off the shelf it's a) potential energy increases and it's kinetic energy decreases b) kinetic energy increases and it's potential energy decreases (is lost)
As a ball falls off the shelf it's kinetic energy increases and it's potential energy decreases (is lost)
500
The Law of Conservation of Energy states that energy can be neither _______ nor __________.
The Law of Conservation of Energy states that energy can be neither created nor destroyed.
500
What is one drawback of solar power? What is one drawback of wind power? (answer both)
-Solar power can be very expensive -Wind turbines are bad for the bird population, and do not look very nice
500
What is the main process driving nuclear energy? (think about atoms)
Fission: neutrons are shot at uranium atoms which split into smaller atoms, generating heat
500
Chelsea wants to know what type of popcorn (pop secret, smart balance, orville redenbacher) pops the most amount of kernals in the microwave. What is one constant in this experiment?
A constant would be anything you keep the same in all the trials (testing each brand): Length of time in the microwave Level of microwave Size of bag the microwave is in